Obtain a copy of your tax return from the IRS by completing form 4506, Request for Copy of Tax Return, and mail the form to the address listed on the instruction page, explains the agency. It costs $50 for each return requested, as of 2015.
Copies of tax returns are usually available for the current year and past six years, explains the IRS. When requesting a copy of a joint return, either spouse may request a copy, and only one signature is required. It taxes approximately 75 calendar days for the IRS to process the request. If you have been affected by a federally declared disaster area, the IRS waives the fee and expedites copies of tax returns if you need them to apply for benefits or to file amended returns because of disaster-related losses.
You can obtain your tax transcript free of charge. Go to the Get Transcript page on the IRS website or by calling 800-908-9946 to request a copy of your transcript. You can call that number to order a copy of your return as well. You can also order a copy of your tax transcript by mail by filling out Form 4506-T, Request for Transcript of Tax Return, explains the agency.